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OSY to GTF: distance & flight time
Namsos (Namsos Høknesøra Airport) → Great Falls (Great Falls International Airport)
4,115 mi
6,622 km · 3,576 nm
8h 32m
estimated nonstop flight time
-8h
time difference · heading northwest
See live OSY→GTF fares Phone-only fares on this route — call free
Flight time details
4,115 miles nonstop takes roughly 8h 32m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- OSY — Namsos Høknesøra Airport · Namsos, Norway
- GTF — Great Falls International Airport · Great Falls, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near OSY
- RVK · Rørvik Airport, Ryum28 mi away
- BNN · Brønnøysund Airport71 mi away
- TRD · Trondheim Airport Værnes73 mi away
- OLA · Ørland Airport80 mi away
Near GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Frequently asked questions
How far is OSY from GTF?
The flight distance from Namsos (OSY) to Great Falls (GTF) is 4,115 miles (6,622 km, 3,576 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSY to GTF?
A nonstop flight takes about 8h 32m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Namsos and Great Falls?
Great Falls is 8 hours behind Namsos.
What is the cheapest way to fly from OSY to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSY–GTF that never appear on search engines, with no booking fees.